CN110252377A - A kind of di-iron trioxide carbonitride heterojunction photocatalyst and preparation method thereof - Google Patents
A kind of di-iron trioxide carbonitride heterojunction photocatalyst and preparation method thereof Download PDFInfo
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- CN110252377A CN110252377A CN201910595217.4A CN201910595217A CN110252377A CN 110252377 A CN110252377 A CN 110252377A CN 201910595217 A CN201910595217 A CN 201910595217A CN 110252377 A CN110252377 A CN 110252377A
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- iron trioxide
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- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 241000446313 Lamella Species 0.000 claims abstract description 5
- 239000012798 spherical particle Substances 0.000 claims abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 21
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 7
- 150000001805 chlorine compounds Chemical class 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000004530 micro-emulsion Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 150000004985 diamines Chemical class 0.000 claims 1
- 229960000907 methylthioninium chloride Drugs 0.000 abstract description 13
- 230000015556 catabolic process Effects 0.000 abstract description 12
- 238000006731 degradation reaction Methods 0.000 abstract description 12
- 239000003054 catalyst Substances 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 229910001453 nickel ion Inorganic materials 0.000 abstract description 3
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 2
- -1 iron ion Chemical class 0.000 abstract description 2
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 abstract 1
- XQAXGZLFSSPBMK-UHFFFAOYSA-M [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate Chemical compound O.O.O.[Cl-].C1=CC(=[N+](C)C)C=C2SC3=CC(N(C)C)=CC=C3N=C21 XQAXGZLFSSPBMK-UHFFFAOYSA-M 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical group FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- LAIZPRYFQUWUBN-UHFFFAOYSA-L nickel chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ni+2] LAIZPRYFQUWUBN-UHFFFAOYSA-L 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- SGHAALHPYURIFF-UHFFFAOYSA-N [C+4].[O-2].[O-2].[O-2].[Fe+2].[Fe+2] Chemical compound [C+4].[O-2].[O-2].[O-2].[Fe+2].[Fe+2] SGHAALHPYURIFF-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 230000007281 self degradation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
A kind of di-iron trioxide carbonitride heterojunction photocatalyst and preparation method thereof, the carbonitride be it is laminar structured, di-iron trioxide is spherical particle configuration, and di-iron trioxide appendix is on carbonitride lamella.The present invention synthesizes carbonitride di-iron trioxide heterojunction photocatalyst by one step hydro thermal method, easy to operate, at low cost, and energy consumption is few.By adjusting iron ion and nickel ion integral molar quantity, a series of g-C are synthesized3N4/Fe2O3Photochemical catalyst.Under the conditions of optimal parameter, it is seen that the degradation rate of light degradation organic pollutant (methylene blue) reaches 93.39%.
Description
Technical field
The present invention relates to field of nano material preparation more particularly to a kind of di-iron trioxide carbonitride heterojunction photocatalysts
And preparation method thereof.
Background technique
Nowadays, the development of many industries leads to water pollution, endangers people along with the not qualified discharge of organic pollutant
Health.Such as: chemical plant, dyestuff factory, dressing plant etc..Photocatalitic Technique of Semiconductor has green, efficient, low in cost etc. excellent
Point is favored by scientific research personnel.Wherein graphite phase carbon nitride (g-C3N4) possess stable physical and chemical performance, good medium electricity
Energy subband (2.7eV), it is nontoxic cheap the advantages that, be a kind of catalysis material with development potential.However the nitrogen currently synthesized
Change the generally existing visible light-responded narrow range of carbon, photo-generate electron-hole pairs are easy to the problems such as compound.Therefore, pass through composition metal oxygen
The mode of compound constructs di-iron trioxide carbonitride hetero-junctions, increases reactivity site, can effectively improve photo-generated carrier
Efficiency of transmission promotes the separation of photo-generate electron-hole pair, and then enhances photocatalytic activity.
Currently, 104888837 A of China Patent Publication No. CN has developed di-iron trioxide composite nitride carbon using roasting
Photochemical catalyst, significant to rhodamine B photocatalytic degradation effect, China Patent Publication No. CN105289692 A discloses roasting method
Prepare g-C3N4/Fe2O3Composite material shows good catalytic effect to the thermal decomposition of ammonium perchlorate (AP).But pass through roasting
Method prepares g-C3N4/Fe2O3Process is relative complex, at high cost, and energy consumption is serious.
Summary of the invention
The object of the present invention is to provide a kind of di-iron trioxide carbonitride heterojunction photocatalysts and preparation method thereof, make nitrogen
Changing carbon heterojunction photocatalyst has excellent visible light photocatalysis performance.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of di-iron trioxide carbonitride heterojunction photocatalyst, the carbonitride are laminar structured, three oxidations two
Iron is spherical particle configuration, and di-iron trioxide appendix is on carbonitride lamella.
A kind of preparation method of di-iron trioxide carbonitride heterojunction photocatalyst, includes the following steps:
1) weighing lauryl amine quality is 0.15-0.25g, is dissolved in 18-22mL deionized water, and three-necked flask is added
In, start to stir；
2) weighing n-butanol volume is 13-17mL, is added in three-necked flask；
3) mixture of Nickelous nitrate hexahydrate and four water frerrous chlorides is prepared, Nickelous nitrate hexahydrate and four water frerrous chlorides are mixed
Close Fe in object+2+Ni+2=15mmol, 12mmol, 9mmol, 6mmol, 3mmol；mol(Fe+2)/mol(Ni+2)=2/1-1/3；To
It is dissolved completely in n-butanol to lauryl amine, after obtaining microemulsion liquid, prepared Nickelous nitrate hexahydrate and four water chlorine is added
Change ferrous mixture；
4) g-C of 0.44-0.48g is added3N4Solid powder；
5) after solid is completely dissolved, it is 2-4.5 that ammonium hydroxide, which is added, and adjusts pH value, and liquid mixture is placed in the reaction of 50ml
In kettle；
6) reaction kettle is placed in baking oven, hydrothermal crystallizing reacts 20-26h, is by product centrifugation, washing, 60-80 DEG C of drying
Obtain carbonitride di-iron trioxide heterojunction photocatalyst.
Compared with prior art, the beneficial effects of the present invention are:
The present invention synthesizes carbonitride di-iron trioxide heterojunction photocatalyst, easy to operate, cost by one step hydro thermal method
Low, energy consumption is few.By adjusting iron ion and nickel ion integral molar quantity, a series of g-C are synthesized3N4/Fe2O3Photochemical catalyst.Best ginseng
Under said conditions, it is seen that the degradation rate of light degradation organic pollutant (methylene blue) reaches 93.39%.
Detailed description of the invention
Fig. 1 is that carbonitride di-iron trioxide heterojunction photocatalyst SEM schemes (molar ratio Fe+2: Ni+2=1/3, Fe+2+Ni+2
=3 mmol).
Fig. 2 is that carbonitride di-iron trioxide heterojunction photocatalyst SEM schemes (molar ratio Fe+2: Ni+2=1/3, Fe+2+Ni+2
=6 mmol).
Fig. 3 is that carbonitride di-iron trioxide heterojunction photocatalyst SEM schemes (molar ratio Fe+2: Ni+2=1/3, Fe+2+Ni+2
=9 mmol).
Fig. 4 is that carbonitride di-iron trioxide heterojunction photocatalyst SEM schemes (molar ratio Fe+2: Ni+2=1/3, Fe+2+Ni+2
=12 mmol).
Fig. 5 is that carbonitride di-iron trioxide heterojunction photocatalyst SEM schemes (molar ratio Fe+2: Ni+2=1/3, Fe+2+Ni+2
=15 mmol).
Fig. 6 is synthesized Fe2O3/g-C3N4XRD diagram.
Fig. 7 is degradation curve of the carbonitride di-iron trioxide heterojunction photocatalyst product to organic matter methylene blue.
Specific embodiment
Below with reference to embodiment, specific embodiments of the present invention will be further explained:
A kind of di-iron trioxide carbonitride heterojunction photocatalyst, the carbonitride are laminar structured, three oxidations two
Iron is spherical particle configuration, and di-iron trioxide appendix is on carbonitride lamella.
A kind of preparation method of di-iron trioxide carbonitride heterojunction photocatalyst, includes the following steps:
This experiment agents useful for same is the pure rank of analysis, without further purification；
1) weighing lauryl amine quality is 0.15-0.25g, is dissolved in 18-22mL deionized water, and three-necked flask is added
In, start to stir；
2) weighing n-butanol volume is 13-17mL, is added in three-necked flask；
3) mixture of Nickelous nitrate hexahydrate and four water frerrous chlorides is prepared, Nickelous nitrate hexahydrate and four water frerrous chlorides are mixed
Close Fe in object+2+Ni+2=15mmol, 12mmol, 9mmol, 6mmol, 3mmol；mol(Fe+2)/ mol(Ni+2)=2/1-1/3；
Until lauryl amine is dissolved completely in n-butanol, and after obtaining microemulsion liquid, prepared Nickelous nitrate hexahydrate and four water is added
Frerrous chloride mixture；
4) g-C of 0.44-0.48g is added3N4Solid powder；
5) after solid is completely dissolved, it is 2-4.5 that ammonium hydroxide, which is added, and adjusts pH value, and liquid mixture is placed in the reaction of 50ml
In kettle；
6) reaction kettle is placed in baking oven, hydrothermal crystallizing reacts 20-26h, is by product centrifugation, washing, 60-80 DEG C of drying
Obtain carbonitride di-iron trioxide heterojunction photocatalyst.
Embodiment 1:
A kind of preparation method of carbonitride di-iron trioxide heterojunction photocatalyst, specific steps are as follows:
This experiment agents useful for same is the pure rank of analysis, without further purification.
1) weighing lauryl amine quality is 0.2g, is dissolved in 20mL deionized water, is added in three-necked flask, starts to stir
It mixes.
2) weighing n-butanol volume is 15mL, is added in three-necked flask.
3) 0.597g Nickel dichloride hexahydrate and tetra- water frerrous chloride (molar ratio Fe of 2.1393g are weighed+2: Ni+2=1/3, Fe+2+Ni+2=12mmol), until lauryl amine is dissolved completely in n-butanol, after obtaining microemulsion liquid, six nitric hydrates are added
Nickel and four water frerrous chlorides.
4) after solid is completely dissolved, the g-C of 0.46g is added3N4Solid powder is added a certain amount of ammonium hydroxide and adjusts pH value
It is 4.5, liquid is placed in the reaction kettle of 50ml.
5) reaction kettle is placed in baking oven, hydrothermal crystallizing reacts 20h, and by product centrifugation, washing, (twice, alcohol washes one for washing
It is secondary), drying carbonitride di-iron trioxide heterojunction photocatalyst can be obtained.
Embodiment 2-5:
A kind of preparation method of carbonitride di-iron trioxide heterojunction photocatalyst, concrete operation step such as embodiment 1, no
Be with place: in Nickel dichloride hexahydrate and four water frerrous chloride mixtures, the sum of iron and nickel ion molal quantity are respectively
Fe2++Ni2+=15mmol, 9mmol, 6mmol, 3mmol.The nitridation of different-shape is obtained under the conditions of precursor liquid pH value is 4.5
Carbon di-iron trioxide heterojunction photocatalyst.
Application of the carbonitride heterojunction photocatalyst obtained in Example 1-5 as degradable organic pollutant, can
Carbonitride heterojunction photocatalyst evaluates the degradation effect of methylene blue (MB) light of carbonitride hetero-junctions under light-exposed irradiation
Catalytic performance.Specific steps are as follows:
Each 20mg of carbonitride heterojunction photocatalyst of Example 1-5 preparation, putting it into 50mL concentration is 10-5
Methylene blue (MB) solution of mol/L.Reach adsorption equilibrium in shady place stirring 1h, is then placed under visible light and irradiates.
One group of comparative sample that catalyst is not added under equal conditions is set, the self-degradation degree of illumination condition MB is investigated.
See Fig. 1-Fig. 5, carbonitride di-iron trioxide heterojunction photocatalyst ferronickel molar ratio Fe+2: Ni+2=1:3, nitridation
Carbon is (0.46g), it can be found that Fe+2+Ni+2The photochemical catalyst sheet surfaces synthesized when=12mmol are relatively smooth, particle
It is dispersed between lamella, particle size is substantially between 30-50nm.
Fig. 6 shows that di-iron trioxide and carbonitride characteristic peak, di-iron trioxide characteristic peak and card PDF-24-0072 are kissed
It closes, carbonitride characteristic peak and card (JCPDS 87-1526) coincide.As shown, Fe+2+Ni+2The light synthesized when=12mmol
Catalyst peak shape is sharp, illustrates that crystallinity is good, consistent with SEM figure characterization result.
See Fig. 7, Fe+2+Ni+2The photochemical catalyst adsorptivity and photocatalysis performance synthesized when=12mmol is best, passes through
40min reaches 57.06% to the adsorption rate of methylene blue, after photocatalysis 5h, reaches 93.39% to the degradation rate of methylene blue.
By identical degradation time, the degradation effect of carbonitride di-iron trioxide heterojunction photocatalyst is bright after illumination
It is aobvious.After radiation of visible light 5h, photochemical catalyst (12mmol) is 93.39% to the degradation rate of MB under optimum condition.However, control
The degradation rate of group MB is only 4.83%, illustrates that the degradation of MB is mainly photocatalytic oxidation.
It is described the invention in detail above by specific embodiment and exemplary embodiment, but these explanations
Any restrictions are not constituted to protection scope of the present invention.Without departing from spirit of that invention and protection scope, ability
Field technique personnel can carry out a variety of improvement, equivalencing or modification to the present invention and embodiments thereof, but these should all fall into
In protection scope of the present invention.
Claims (2)
1. a kind of di-iron trioxide carbonitride heterojunction photocatalyst, which is characterized in that the carbonitride be it is laminar structured,
Di-iron trioxide is spherical particle configuration, and di-iron trioxide appendix is on carbonitride lamella.
2. a kind of preparation method of di-iron trioxide carbonitride heterojunction photocatalyst as described in claim 1, feature exist
In including the following steps:
1) weighing lauryl amine quality is 0.15-0.25g, is dissolved in 18-22mL deionized water, is added in three-necked flask,
Start to stir；
2) weighing n-butanol volume is 13-17mL, is added in three-necked flask；
3) mixture of Nickelous nitrate hexahydrate and four water frerrous chlorides, Nickelous nitrate hexahydrate and four water frerrous chloride mixtures are prepared
Middle Fe+2+Ni+2=15mmol, 12mmol, 9mmol, 6mmol, 3mmol；mol(Fe+2)/mol(Ni+2)=2/1-1/3；Until ten
Diamines is dissolved completely in n-butanol, and after obtaining microemulsion liquid, prepared Nickelous nitrate hexahydrate and four water protochlorides is added
Iron mixture；
4) g-C of 0.44-0.48g is added3N4Solid powder；
5) after solid is completely dissolved, it is 2-4.5 that ammonium hydroxide, which is added, and adjusts pH value, and liquid mixture is placed in the reaction kettle of 50ml
In；
6) reaction kettle is placed in baking oven, hydrothermal crystallizing reacts 20-26h, and product centrifugation, washing, 60-80 DEG C obtained by drying are arrived
Carbonitride di-iron trioxide heterojunction photocatalyst.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721689A (en) * | 2019-11-12 | 2020-01-24 | 江苏师范大学 | Porous spherical NiO/TiO2Heterostructure nano material and preparation method thereof |
| CN113649003A (en) * | 2021-08-27 | 2021-11-16 | 陕西科技大学 | Ion-modified red mud-based heterojunction photocatalyst and preparation method and application thereof |
| CN114873957A (en) * | 2022-05-10 | 2022-08-09 | 福建工程学院 | Waterproof and antibacterial environment-friendly slag soil brick and preparation method thereof |
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| CN110721689A (en) * | 2019-11-12 | 2020-01-24 | 江苏师范大学 | Porous spherical NiO/TiO2Heterostructure nano material and preparation method thereof |
| CN113649003A (en) * | 2021-08-27 | 2021-11-16 | 陕西科技大学 | Ion-modified red mud-based heterojunction photocatalyst and preparation method and application thereof |
| CN114873957A (en) * | 2022-05-10 | 2022-08-09 | 福建工程学院 | Waterproof and antibacterial environment-friendly slag soil brick and preparation method thereof |
| CN114873957B (en) * | 2022-05-10 | 2023-04-07 | 福建工程学院 | Waterproof and antibacterial environment-friendly slag soil brick and preparation method thereof |
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